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OPA837IDBVT Datasheet(PDF) 9 Page - Texas Instruments |
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OPA837IDBVT Datasheet(HTML) 9 Page - Texas Instruments |
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9 / 57 page  9 OPA837, OPA2837 www.ti.com SBOS673A – SEPTEMBER 2017 – REVISED APRIL 2018 Product Folder Links: OPA837 OPA2837 Submit Documentation Feedback Copyright © 2017–2018, Texas Instruments Incorporated Electrical Characteristics: VS = 3 V (continued) at VS+ = 3 V, VS– = 0 V, RF = 0 Ω, RL = 2 kΩ, G = 1 V/V, input and output referenced to mid-supply, and TA ≈ 25°C (unless otherwise noted) PARAMETER TEST CONDITIONS MIN TYP MAX UNIT TEST LEVEL(1) (5) The typical spec is at 25oC Tj. The min, max limits are expanded for ATE to account for ambient range from 22 oC to 32oC with a +4- uA/oC temperature coefficient on the supply current. Input offset current drift(3) TA = –40°C to +125°C –250 ±40 250 pA/°C B TA = –40°C to +125°C (OPA2837) –250 ±80 250 B Input-referred offset voltage mismatch TA ≈ 25°C (OPA2837) -220 50 220 µV A INPUT Common-mode input range, low TA ≈ 25°C, < 3-dB degradation in CMRR limit –0.2 0 V A TA = –40°C to +125°C, < 3-dB degradation in CMRR limit –0.2 0 B Common-mode input range, high TA ≈ 25°C, < 3-dB degradation in CMRR limit 1.7 1.8 V A TA = –40°C to +125°C, < 3-dB degradation in CMRR limit 1.7 1.8 B CMRR Common-mode rejection ratio 90 105 dB A Input impedance common-mode 250 || 1.5 kΩ || pF C Input impedance differential mode 180 || 0.5 kΩ || pF C OUTPUT VOL Output voltage, low TA ≈ 25°C, G = 2 0.05 0.1 V A TA = –40°C to +125°C, G = 2 0.10 0.2 B VOH Output voltage, high TA ≈ 25°C, G = 2 2.9 2.95 V A TA = –40°C to +125°C, G = 2 2.8 2.9 B Maximum current into a resistive load TA ≈ 25°C, ±0.8 V into 17.5 Ω, VIO < 2 mV ±45 ±55 mA A Linear current into a resistive load TA ≈ 25°C, ±0.9 V into 21.5 Ω, AOL > 80 dB ±40 ±45 mA A Linear current into a resistive load overtemperature TA = –40°C to 125°C, ±0.7 V into 21.5 Ω, AOL > 80 dB ±32 ±40 mA C POWER SUPPLY Specified operating voltage 2.7 5.4 V B Quiescent operating current per amplifier (OPA837, 3-V supply) TA ≈ 25°C (5) 547 570 607 µA A TA = –40°C to +125°C 404 570 817 B Quiescent operating current per amplifier (OPA2837, 3-V supply) TA ≈ 25°C (5) 540 570 607 µA A Supply current temperature coefficient per amplifier TA = –40°C to +125°C (see Figure 57) 0.8 1.7 2.2 µA/°C B +PSRR Positive power-supply rejection ratio 90 110 dB A –PSRR Negative power-supply rejection ratio 88 105 dB A POWER DOWN (Pin Must be Driven) Enable voltage threshold Specified on above VS– + 1.5 V 1.5 V A Disable voltage threshold Specified off below VS– + 0.55 V 0.55 V A Power-down pin bias current PD = 0 V to VS+ –50 50 nA A Power-down quiescent current PD ≤ 0.55 V 1 3 8 µA A Power-down quiescent current over temperature PD ≤ 0.55 V, TA = –40°C to +125°C 8 µA B Turnon time delay Time from PD = high to VOUT = 90% of final value 300 ns C Turnoff time delay Time from PD = low to VOUT = 10% of original value 100 ns C |
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